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Questions and Answers
Which one of these is the most correct?
Which one of these is the most correct?
- Loudspeaker, microphone, electric motor, magnet
- Voltmeter, Ammeter, galvanometer, thermometer
- Explanation of construction and working of the following (correct)
- Fuse wire, bad conductor, rubber gloves, generator
Which one of these is a bad conductor of electricity?
Which one of these is a bad conductor of electricity?
- Electric motor
- Fuse wire
- Generator
- Rubber gloves (correct)
Which one of these is used for measuring electrical parameters?
Which one of these is used for measuring electrical parameters?
- Electric motor
- Magnet
- Galvanometer (correct)
- Thermometer
Which one of these is an electrical device for producing electricity?
Which one of these is an electrical device for producing electricity?
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Which one of these is based on the phenomenon of electromagnetism?
Which one of these is based on the phenomenon of electromagnetism?
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Study Notes
Conductivity and Measurement
- Bad conductors of electricity have high resistance and do not allow electric current to flow easily, examples include rubber and glass.
- Instruments for measuring electrical parameters include multimeters and oscilloscopes, which can assess voltage, current, resistance, and frequency.
Electrical Production
- Devices that produce electricity include generators and batteries, which convert mechanical energy or chemical energy into electrical energy, respectively.
Electromagnetism
- Devices based on electromagnetism include transformers and electric motors, which utilize magnetic fields to create movement or transfer electrical energy efficiently.
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Description
Test your knowledge of electrical devices and instruments by identifying the odd one out in each group. Provide a proper explanation for your choice to demonstrate understanding.
